"The notion that if everyone followed the morals of the bible the world would be a better place."
Various mainstream churches been pushing Biblical morality for the last few thousand years in the Western World, and hon, look around....is the world a better place?
No, no one practices it perfectly nor can you totally enforce it, but I imagine that most people in the Western World know that the Bible teaches that adultery, stealing, murder, greed and promiscuity are wrong. DUH!
You're assuming that only Christians know these things are wrong too, but surprise, most Buddhists and Hindus etc believe they are wrong too!
The WTS teaches people that they're the only bastion of morality in the world to demonize the rest of the world, but they're not doing a whole lot better at it. They just banish anyone who doesn't follow their version of Biblical morality, but these people still exist outside of their little world, so is that really making the world follow their version Biblical morality (and they're doing some of that wrong, anyway)?
No, it's not even making their own members practice it. It's making themselves look good to themselves by shunning people who don't conform, that's all. It's not a solution that works even in their own organization, and especially not outside of it.